Answer: Cost to distributer $3.38
Cost to retailer $4.73
Step-by-step explanation: First find 35 percent of $2.50
2.50 x 0.35 = 0.875 this is 35% of 2.50
Then add this amount to 2.50
2.50 + 0.875 = 3.375 or $3.38
Then to find the cost to the retailer repeat this process with 40%
3.38 x 0.40 = 1.352
1.352 + 3.38. = 4.732 or $4.73